I think it is the future of online gambling because the people who use things like online casinos are more likely to use Bitcoin to gamble.
And online gambling is becoming more popular then first so I think and hope that Bitcoin will also.
I don't doubt that bitcoin gambling is the future of gambling. And there are gamblers that wants to stay anonymous when gambling. As a solution to their demand they can simply migrate and gamble with bitcoin. Also bitcoin gambling industry nowadays is one of the most successful and blooming industry we can see that there are a lot of casino's that are competing.